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iio: adc: ad7192: use devm_clk_get_optional() for mclk
The devm_clk_get_optional() helper returns NULL when devm_clk_get() returns -ENOENT. This makes things slightly cleaner. The added benefit is mostly cosmetic. Also, a minor detail with this call, is that the reference for the parent device is taken as `spi->dev` instead of `&st->sd.spi->dev` (which looks a little quirky). Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Link: https://lore.kernel.org/r/20210513120752.90074-10-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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1 changed files with 3 additions and 3 deletions
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@ -326,7 +326,7 @@ static int ad7192_of_clock_select(struct ad7192_state *st)
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clock_sel = AD7192_CLK_INT;
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/* use internal clock */
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if (PTR_ERR(st->mclk) == -ENOENT) {
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if (st->mclk) {
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if (of_property_read_bool(np, "adi,int-clock-output-enable"))
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clock_sel = AD7192_CLK_INT_CO;
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} else {
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@ -978,8 +978,8 @@ static int ad7192_probe(struct spi_device *spi)
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st->fclk = AD7192_INT_FREQ_MHZ;
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st->mclk = devm_clk_get(&st->sd.spi->dev, "mclk");
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if (IS_ERR(st->mclk) && PTR_ERR(st->mclk) != -ENOENT) {
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st->mclk = devm_clk_get_optional(&spi->dev, "mclk");
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if (IS_ERR(st->mclk)) {
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ret = PTR_ERR(st->mclk);
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goto error_remove_trigger;
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}
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